How do you adjust a TBI fuel pressure regulator?
To increase the fuel pressure, turn the adjustment screw counter-clockwise. This will cause the spring to exert more pressure on the regulator diaphragm and regulate at a higher pressure. Monitor your adjustment with a fuel pressure gauge. A little adjustment should be all that’s necessary, 1-2 PSIG at a time.
Where is the fuel pressure regulator located?
On fuel injected, gasoline engines , typically the regulator is located at the end of the fuel rail, after all the injectors. Look for the supply line TO the injectors and follow it to where the return is located at the end of the fuel rail.
What is the fuel pressure on a carbureted engine?
between 6 and 8 psi
Fuel pressure should be set between 6 and 8 psi for a gasoline carburetor. An alcohol carburetor is a different animal with very different requirements. The Alky carburetor will require 4 to 5 psi at idle and 9 to 12 psi at wide open throttle. Remember, fuel pressure is not a substitute for volume!
Is the P chassis the correct name for a motorhome?
We will show you that simply telling the alignment shop that it’s a “P30 Chassis” will almost guarantee you an incorrect alignment. Your Class A motorhome is NOT built on a “P30 Chassis”. The correct general term is a “Motorhome P Chassis”.
Is the G10 chassis the same as the P30 chassis?
The same chassis series has been used for G10, G20, G30, P20, P30, and Motorhomes under a ’32 – 52′ designation. What’s more, the alignment specs are different for the motorhome chassis because they were made slightly different.
What’s the difference between a P30 and P37 chassis?
The “P30” term is simply too generic to help when specifics are needed. If the 5ththru 7 positions in your VIN number are “P37”, then you have the motorhome version of the chassis. Actually, it is the ‘7’ that tells us we have the motorhome version of the chassis. (See Appendix C for the VIN breakdown.)
Are there any problems with the P chassis?
Sounds straightforward enough, but the P Chassis has been given a reputation for not handling very well, even after an alignment has been done. The catch seems to be that many of the motorhomes experiencing drivability problems have old, worn, saggy parts. Sound familiar?
Is the Class A motorhome built on a P30 chassis?
Your Class A motorhome is NOT built on a “P30 Chassis”. The correct general term is a “Motorhome P Chassis”. The P Chassis was also used for what is referred to as a Commercial (Forward Control) truck.
The same chassis series has been used for G10, G20, G30, P20, P30, and Motorhomes under a ’32 – 52′ designation. What’s more, the alignment specs are different for the motorhome chassis because they were made slightly different.
The “P30” term is simply too generic to help when specifics are needed. If the 5ththru 7 positions in your VIN number are “P37”, then you have the motorhome version of the chassis. Actually, it is the ‘7’ that tells us we have the motorhome version of the chassis. (See Appendix C for the VIN breakdown.)
Sounds straightforward enough, but the P Chassis has been given a reputation for not handling very well, even after an alignment has been done. The catch seems to be that many of the motorhomes experiencing drivability problems have old, worn, saggy parts. Sound familiar?
